Cascara Sagrada

Also known as: Cascara Buckthorn

Botanical Overview

Cascara Sagrada (Rhamnus purshiana) belongs to the Rhamnaceae family. Limited but reliable traditional records indicate this plant has recognized medicinal applications in one or more healing traditions. The buckthorn family (Rhamnaceae) includes shrubs and trees with simple, alternate leaves and small, inconspicuous flowers with four or five petals. The fruits are typically drupes or capsules. Many species contain anthraquinone glycosides with strong purgative activity.

Family Context

The Rhamnaceae family is widely distributed. Notable medicinal members include:

Geographic Distribution

Cascara Sagrada has been recorded in 10 countries and territories worldwide, including Canada, Colombia, France, United Kingdom, Kenya, and others.

Traditional Uses

Cascara Sagrada has been traditionally used for digestive health, metabolic and nutritional health, and immune system support.

Digestive health.

  • Laxative
  • Purgative

For digestive complaints, the herb is typically prepared as a tea or decoction taken before meals. The bitter compounds stimulate digestive secretions and improve nutrient absorption. Some traditions use the powdered root or leaves in small doses as a stomachic tonic.

Metabolic and nutritional health.

  • Tonic

Metabolic applications include consuming the plant as a food, fresh juice, or herbal infusion. Regular use supports the body’s natural metabolic processes and nutritional status.

Immune system support.

  • Cancer

Immune support involves taking the herb as a decoction or tincture over extended periods. The active compounds stimulate immune cell activity and provide antimicrobial protection.

ⓘ Information
Information on this page is compiled from Dr. Duke’s Phytochemical and Ethnobotanical Databases (USDA ARS), a public domain resource. Consult a healthcare professional before using any herbal preparation.
⚠ Caution
Traditional records: This plant has documented uses including Purgative. Self-medication with herbs carries risks including allergic reactions, drug interactions, and toxicity. Only use under the supervision of a qualified healthcare professional.

Distribution and Conservation

Reported distribution: Canada, Colombia, France, United Kingdom, Kenya, Netherlands, New Zealand, Poland, United States, Unknown.

Complete Use Records

CategoryCultural Context
LaxativeCanada(Kwakiutl), US, US(Amerindian), US(Flathead)
TonicUS, US(Amerindian)
AperientElsewhere
BiliousCanada(Kwakiutl)
PurgativeUS(Flathead)
CancerUS

References & Further Reading

External Research Links

Data Sources